Zainel Mohsin Z, Ayoob Sulaiman Z. Application of the Method of Characteristics with Unsteady Friction Model for Numerical Modeling of Transient Flow Induced by Valve Closure. AREJ [Internet]. 2023 Sep. 1 [cited 2025 Aug. 8];28(2):209-25. Available from: https://ojs.uomosul.edu.iq/index.php/arej/article/view/26727